How are camloc gas springs tested

Temperature

• The seal is suitable for use between -40C and +70C
• We conduct our own internal thermal validation testing on our spring assemblies between -40C and +80/+100C where the spring is cycled at minimum temperature, returned to ambient temperature, cycled at maximum temperature then returned to ambient temperature over 3 complete cycles. There are no issues with the range the customer is looking to use the seals within, however the data recorded is not retained in a format suitable for onward transmittal to the customer. The test involves cooling the spring from ambient to -40C, cycling the spring for 6 hours, returning to ambient, then heating to +100C, cycling for 6 hours and returning to ambient. This test cycle is run 3 complete times

Humidity

• We have not conducted any form of humidity testing on our products, if the customer requires this level of information it would be at additional cost. Please advise if you wish me to obtain costs for this.

Salt Fog

• We use an epoxy / polyester hybrid coating on our gas springs, this is in addition to surface pre-treatment we apply to the gas spring tube.
• Salt spray performance of the gas spring varies, the weakest part of which is the end fittings (B6 in this instance) which are only rated to 72 hours to white, the rod is officially rated to 120 hours to white (although typically we see in excess of 200 hours in testing) and the tube itself we have seen over 1000 hours in testing. We have test data for the basic spring (i.e. no end fittings) which exceeds the customer requirements, but they will not get this when this particular end fit is used.  (Note that test data is for neutral salt spray and ISO 9227:2006 (35C, 5% salt concentration))

Forbidden and Hazardous Materials

• See our REACH, RoHS and MSDS statements.

Dissimilar metals

• Galvanic couple less than 0.25v. I am awaiting information from one of our suppliers before I am able to comment on this.

Screws and Nuts

• We do not use screw or nuts in this assembly.

Service Life

• See page 5 of the “Camloc gas spring information” pdf attached.

Endurance

• Camloc gas springs are subjected to periodic endurance testing as part of our on-going r&d processes. In idealised conditions we often see in excess of 50,000 cycles completed by our gas springs. For our testing we assume the majority of applications will tolerate a force loss of up to 10% to be acceptable.

Safety Objective

• All Camloc gas springs are marked with symbolising relating to our customer, in this instance Anemo. The symbolising states that the spring is pressurised and should not be opened or heated as per the following example.